%I #13 Aug 28 2017 13:49:43
%S 3,9,36,192,1089,6642,42129,275571,1844028,12567762,86924745,
%T 608612814,4305284400,30723593751,220917003516,1599013642359,
%U 11641144003245,85186969539435,626245146267393,4622806865390823,34251800667936939,254640579219212457
%N Number of rooted identity trees with 3-colored nodes.
%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>
%H <a href="/index/Ro#rooted">Index entries for sequences related to rooted trees</a>
%F Shifts left and divides by 3 under Weigh transform.
%F a(n) = 3 * A052757(n).
%Y Cf. A004111, A038077-A038080.
%Y Cf. A052757.
%K nonn,eigen
%O 1,1
%A _Christian G. Bower_, Jan 04 1999